Re: odd c64 and nice pet find

From: William Levak (wlevak_at_cyberspace.org)
Date: 2000-10-03 22:26:46

On Tue, 3 Oct 2000, Nicolas Welte wrote:

> William Levak wrote:
> > This was a constant problem with those keyboards.  You will have to take
> > it apart and clean the contacts.
> 
> Great, thanks! This means there are chances the VIA or PIA is still
> good. It would've been a pity to put a replacement into an otherwise
> original mainboard.

Those machines blew interface chips frequently.  Just because the machine
is old, doesn't mean the chips are old.  Check the date codes on the
chips.  When I replace chips in old machines, I try to use chips of
approximately the same date.  Some surplus electronics dealers sell used
chips and components, so it is possible to get old chips for old
equipment, but you don't get to specify the date.



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